You would expect a guy who's been on steroids and been a pro bodybuilder for years to be able to handle a bit more weight.
Did it ever occur to you that those weights could possibly be warm up sets?
Forget it. You will never be a pro bodybuilder, you will never look like one and you have no f*ucking clue what it takes to get ready for a pro show and what some pros go through in terms of discipline.
By that pic he looks like he's a few weeks out from doing a show. pro's typically dont go heavy in the weeks prior to show for concern of a possible injury.
ok...I'm sure you can do more weight on bicep curls. But your form is probably dog shit with your ass poking in the air as you lift the weight and your spine bending backwards like a pretzel as you bring the weight up.
dickhead.....